static void stm32f4xx_sdio_send_command(struct stm32f4xx_sdio *sdio, struct rt_mmcsd_cmd *cmd)
{
struct rt_mmcsd_data *data = cmd->data;
sdio->cmd = cmd;
if (resp_type(cmd) == RESP_NONE)
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_No;
else
{
/* set 136 bit response for R2, 48 bit response otherwise */
if (resp_type(cmd) == RESP_R2)
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
else
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
}
SDIO_CmdInitStructure.SDIO_Argument = cmd->arg;
SDIO_CmdInitStructure.SDIO_CmdIndex = cmd->cmd_code;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
if (cmd->cmd_code == GO_IDLE_STATE)
SDIO_ITConfig(SDIO_IT_CMDSENT, ENABLE);
else
SDIO_ITConfig(SDIO_IT_CCRCFAIL | SDIO_IT_CMDREND | SDIO_IT_CTIMEOUT, ENABLE);
SDIO_SendCommand(&SDIO_CmdInitStructure);
if (data)
{
SDIO->DCTRL = 0x0;
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
SDIO_DataInitStructure.SDIO_DataLength = data->blksize * data->blks;
SDIO_DataInitStructure.SDIO_DataBlockSize = get_order(data->blksize) << 4;
if (data->flags & DATA_DIR_WRITE)
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
else if (data->flags & DATA_DIR_READ)
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO;
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
SDIO_DataConfig(&SDIO_DataInitStructure);
if (data->flags & DATA_DIR_WRITE)
{
SD_LowLevel_DMA_TxConfig((uint32_t *)data->buf, data->blksize * data->blks);
}
else if (data->flags & DATA_DIR_READ)
{
SD_LowLevel_DMA_RxConfig((uint32_t *)data->buf, data->blksize * data->blks);
}
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE);
SDIO_DMACmd(ENABLE);
}
}
/*************************************************************************
* Function Name: _SdSendCmd
* Parameters: SdCmdInd_t ComdInd,Int32U Arg
*
* Return: SdState_t
*
* Description: SD/MMC commands implement
*
*************************************************************************/
static
SdState_t _SdSendCmd(SdCmdInd_t ComdInd,pInt32U pArg)
{
SDIO_CmdInitTypeDef SDIO_CmdInitStructure;
Int32U Status;
Int32U timeout;
// Send Command
SDIO_CmdInitStructure.SDIO_CmdIndex = _SdCmd[ComdInd].TxData;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_No;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
if(pArg != NULL)
{
switch(_SdCmd[ComdInd].Resp)
{
case SdR2:
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
break;
case SdR1:
case SdR1b:
case SdR3:
case SdR7:
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
}
}
// Send command's arguments
if(_SdCmd[ComdInd].Arg != SdNoArg)
{
SDIO_CmdInitStructure.SDIO_Argument = *pArg;
}
else
{
SDIO_CmdInitStructure.SDIO_Argument = 0;
}
// Clear all the static flags
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
SDIO_SendCommand(&SDIO_CmdInitStructure);
// Wait command respond
if(CMD0 == ComdInd)
{
timeout = SDIO_CMD0TIMEOUT;
do
{
if(0 == --timeout)
{
// Clear all the static flags
return(SdNoResponse);
}
Status = SDIO->STA;
}
while (0 == (Status & SDIO_FLAG_CMDSENT));
}
else
{
do
{
Status = SDIO->STA;
}
while(!(Status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)));
}
SDIO_ClearFlag(SDIO_FLAG_CMDSENT);
if (Status & SDIO_FLAG_CTIMEOUT)
{
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
return(SdNoResponse);
}
if (Status & SDIO_FLAG_CCRCFAIL)
{
SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL);
switch(_SdCmd[ComdInd].TxData)
{
// Ignore CRC Error
case 1: // CMD1
case 41: // ACMD42
case 12: // CMD12
break;
default:
return(SdCardError);
}
}
if(pArg != NULL)
{
switch (_SdCmd[ComdInd].Resp)
{
case SdNoResp:
break;
case SdR3:
case SdR7:
*pArg = SDIO_GetResponse(SDIO_RESP1);
break;
case SdR2:
*pArg++ = SDIO_GetResponse(SDIO_RESP1);
*pArg++ = SDIO_GetResponse(SDIO_RESP2);
*pArg++ = SDIO_GetResponse(SDIO_RESP3);
*pArg++ = SDIO_GetResponse(SDIO_RESP4);
break;
default:
// Check response received is of desired command
if (SDIO_GetCommandResponse() != _SdCmd[ComdInd].TxData)
{
return(SdCardError);
}
*pArg = SDIO_GetResponse(SDIO_RESP1);
}
}
SDIO_ClearFlag(SDIO_FLAG_CMDREND);
return(SdOk);
}
bool SdCardSdioFeature::powerOn() {
SD_Error errorstatus=SD_OK;
uint32_t response=0,count=0,validvoltage=0;
uint32_t SDType=SD_STD_CAPACITY;
SDIO_InitTypeDef sdioInit;
SDIO_CmdInitTypeDef cmdInit;
/*!< Power ON Sequence -----------------------------------------------------*/
sdioInit.SDIO_ClockDiv=_initDivider;
sdioInit.SDIO_ClockEdge=SDIO_ClockEdge_Rising;
sdioInit.SDIO_ClockBypass=SDIO_ClockBypass_Disable;
sdioInit.SDIO_ClockPowerSave=SDIO_ClockPowerSave_Disable;
sdioInit.SDIO_BusWide=SDIO_BusWide_1b;
sdioInit.SDIO_HardwareFlowControl=SDIO_HardwareFlowControl_Disable;
SDIO_Init(&sdioInit);
/*!< Set Power State to ON */
SDIO_SetPowerState(SDIO_PowerState_ON);
/*!< Enable SDIO Clock */
SDIO_ClockCmd(ENABLE);
/*!< CMD0: GO_IDLE_STATE ---------------------------------------------------*/
/*!< No CMD response required */
cmdInit.SDIO_Argument=0x0;
cmdInit.SDIO_CmdIndex=SD_CMD_GO_IDLE_STATE;
cmdInit.SDIO_Response=SDIO_Response_No;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdError();
if(errorstatus != SD_OK)
return errorProvider.set(ErrorProvider::ERROR_PROVIDER_SD_SDIO,E_SDIO_ERROR,errorstatus);
/*!< CMD8: SEND_IF_COND ----------------------------------------------------*/
/*!< Send CMD8 to verify SD card interface operating condition */
/*!< Argument: - [31:12]: Reserved (shall be set to '0')
- [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
- [7:0]: Check Pattern (recommended 0xAA) */
/*!< CMD Response: R7 */
cmdInit.SDIO_Argument=SD_CHECK_PATTERN;
cmdInit.SDIO_CmdIndex=SDIO_SEND_IF_COND;
cmdInit.SDIO_Response=SDIO_Response_Short;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp7Error();
if(errorstatus == SD_OK) {
_cardType=SDIO_STD_CAPACITY_SD_CARD_V2_0; /*!< SD Card 2.0 */
SDType=SD_HIGH_CAPACITY;
} else {
/*!< CMD55 */
cmdInit.SDIO_Argument=0x00;
cmdInit.SDIO_CmdIndex=SD_CMD_APP_CMD;
cmdInit.SDIO_Response=SDIO_Response_Short;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp1Error(SD_CMD_APP_CMD);
}
/*!< CMD55 */
cmdInit.SDIO_Argument=0x00;
cmdInit.SDIO_CmdIndex=SD_CMD_APP_CMD;
cmdInit.SDIO_Response=SDIO_Response_Short;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp1Error(SD_CMD_APP_CMD);
/*!< If errorstatus is Command TimeOut, it is a MMC card */
/*!< If errorstatus is SD_OK it is a SD card: SD card 2.0 (voltage range mismatch)
or SD card 1.x */
if(errorstatus == SD_OK) {
/*!< SD CARD */
/*!< Send ACMD41 SD_APP_OP_COND with Argument 0x80100000 */
while((!validvoltage) && (count < SD_MAX_VOLT_TRIAL)) {
/*!< SEND CMD55 APP_CMD with RCA as 0 */
cmdInit.SDIO_Argument=0x00;
cmdInit.SDIO_CmdIndex=SD_CMD_APP_CMD;
cmdInit.SDIO_Response=SDIO_Response_Short;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp1Error(SD_CMD_APP_CMD);
if(errorstatus != SD_OK)
return errorstatus;
cmdInit.SDIO_Argument=SD_VOLTAGE_WINDOW_SD | SDType;
cmdInit.SDIO_CmdIndex=SD_CMD_SD_APP_OP_COND;
cmdInit.SDIO_Response=SDIO_Response_Short;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp3Error();
if(errorstatus != SD_OK)
return errorstatus;
response=SDIO_GetResponse(SDIO_RESP1);
validvoltage=(((response >> 31) == 1) ? 1 : 0);
count++;
}
if(count >= SD_MAX_VOLT_TRIAL) {
errorstatus=SD_INVALID_VOLTRANGE;
return errorstatus;
}
if(response&=SD_HIGH_CAPACITY)
_cardType=SDIO_HIGH_CAPACITY_SD_CARD;
}/*!< else MMC Card */
if(errorstatus != SD_OK)
return errorProvider.set(ErrorProvider::ERROR_PROVIDER_SD_SDIO,E_SDIO_ERROR,errorstatus);
return true;
}
bool SdCardSdioFeature::initialiseCard() {
SD_Error errorstatus=SD_OK;
uint16_t rca=0x01;
SDIO_CmdInitTypeDef cmdInit;
SDIO_InitTypeDef sdioInit;
if(SDIO_GetPowerState() == SDIO_PowerState_OFF)
return errorProvider.set(ErrorProvider::ERROR_PROVIDER_SD_SDIO,E_SDIO_ERROR,SD_REQUEST_NOT_APPLICABLE);
if(SDIO_SECURE_DIGITAL_IO_CARD != _cardType) {
/*!< Send CMD2 ALL_SEND_CID */
cmdInit.SDIO_Argument=0x0;
cmdInit.SDIO_CmdIndex=SD_CMD_ALL_SEND_CID;
cmdInit.SDIO_Response=SDIO_Response_Long;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp2Error();
if(SD_OK != errorstatus)
return errorProvider.set(ErrorProvider::ERROR_PROVIDER_SD_SDIO,E_SDIO_ERROR,errorstatus);
_cidTab[0]=SDIO_GetResponse(SDIO_RESP1);
_cidTab[1]=SDIO_GetResponse(SDIO_RESP2);
_cidTab[2]=SDIO_GetResponse(SDIO_RESP3);
_cidTab[3]=SDIO_GetResponse(SDIO_RESP4);
}
if((SDIO_STD_CAPACITY_SD_CARD_V1_1 == _cardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == _cardType) || (SDIO_SECURE_DIGITAL_IO_COMBO_CARD == _cardType) || (SDIO_HIGH_CAPACITY_SD_CARD == _cardType)) {
/*!< Send CMD3 SET_REL_ADDR with argument 0 */
/*!< SD Card publishes its RCA. */
cmdInit.SDIO_Argument=0x00;
cmdInit.SDIO_CmdIndex=SD_CMD_SET_REL_ADDR;
cmdInit.SDIO_Response=SDIO_Response_Short;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp6Error(SD_CMD_SET_REL_ADDR,&rca);
if(SD_OK != errorstatus)
return errorProvider.set(ErrorProvider::ERROR_PROVIDER_SD_SDIO,E_SDIO_ERROR,errorstatus);
}
if(SDIO_SECURE_DIGITAL_IO_CARD != _cardType) {
_rca=rca;
/*!< Send CMD9 SEND_CSD with argument as card's RCA */
cmdInit.SDIO_Argument=(uint32_t)(rca << 16);
cmdInit.SDIO_CmdIndex=SD_CMD_SEND_CSD;
cmdInit.SDIO_Response=SDIO_Response_Long;
cmdInit.SDIO_Wait=SDIO_Wait_No;
cmdInit.SDIO_CPSM=SDIO_CPSM_Enable;
SDIO_SendCommand(&cmdInit);
errorstatus=cmdResp2Error();
if(SD_OK != errorstatus)
return errorProvider.set(ErrorProvider::ERROR_PROVIDER_SD_SDIO,E_SDIO_ERROR,errorstatus);
_csdTab[0]=SDIO_GetResponse(SDIO_RESP1);
_csdTab[1]=SDIO_GetResponse(SDIO_RESP2);
_csdTab[2]=SDIO_GetResponse(SDIO_RESP3);
_csdTab[3]=SDIO_GetResponse(SDIO_RESP4);
}
/*!< Configure the SDIO peripheral */
sdioInit.SDIO_ClockDiv = _transferDivider;
sdioInit.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
sdioInit.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
sdioInit.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
sdioInit.SDIO_BusWide = SDIO_BusWide_1b;
sdioInit.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
SDIO_Init(&sdioInit);
return detectCardInfo() &&
selectDeselect((uint32_t) (_cardInfo.RCA << 16)) &&
enableWideBusOperation(SDIO_BusWide_4b);
}
